<template>
  <view
    class="u-notice-bar"
    :style="{
      background: computeBgColor,
      padding: padding,
    }"
    :class="[type ? `u-type-${type}-light-bg` : '']"
  >
    <view class="u-icon-wrap">
      <view
        v-if="volumeIcon"
        class="u-left-icon"
      >热点</view>
      <!-- <u-icon
        class="u-left-icon"
        v-if="volumeIcon"
        name="volume-fill"
        :size="volumeSize"
        :color="computeColor"
      ></u-icon> -->
    </view>
    <swiper
      :disable-touch="disableTouch"
      @change="change"
      :autoplay="autoplay && playState == 'play'"
      :vertical="vertical"
      circular
      :interval="duration"
      class="u-swiper"
    >
      <swiper-item
        v-for="(item, index) in list"
        :key="index"
        class="u-swiper-item"
      >
        <view
          class="u-news-item u-line-1"
          :style="[textStyle]"
          @tap="click(index)"
          :class="['u-type-' + type]"
        >
          {{ item }}
        </view>
      </swiper-item>
    </swiper>
    <view class="u-icon-wrap">
      <u-icon
        @click="getMore"
        class="u-right-icon"
        v-if="moreIcon"
        name="arrow-right"
        :size="26"
        :color="computeColor"
      ></u-icon>
      <u-icon
        @click="close"
        class="u-right-icon"
        v-if="closeIcon"
        name="close"
        :size="24"
        :color="computeColor"
      ></u-icon>
    </view>
  </view>
</template>

<script>
export default {
  props: {
    // 显示的内容，数组
    list: {
      type: Array,
      default() {
        return [];
      },
    },
    // 显示的主题，success|error|primary|info|warning
    type: {
      type: String,
      default: "warning",
    },
    // 是否显示左侧的音量图标
    volumeIcon: {
      type: Boolean,
      default: true,
    },
    // 是否显示右侧的右箭头图标
    moreIcon: {
      type: Boolean,
      default: false,
    },
    // 是否显示右侧的关闭图标
    closeIcon: {
      type: Boolean,
      default: false,
    },
    // 是否自动播放
    autoplay: {
      type: Boolean,
      default: true,
    },
    // 文字颜色，各图标也会使用文字颜色
    color: {
      type: String,
      default: "",
    },
    // 背景颜色
    bgColor: {
      type: String,
      default: "",
    },
    // 滚动方向，row-水平滚动，column-垂直滚动
    direction: {
      type: String,
      default: "row",
    },
    // 是否显示
    show: {
      type: Boolean,
      default: true,
    },
    // 字体大小，单位rpx
    fontSize: {
      type: [Number, String],
      default: 26,
    },
    // 滚动一个周期的时间长，单位ms
    duration: {
      type: [Number, String],
      default: 2000,
    },
    // 音量喇叭的大小
    volumeSize: {
      type: [Number, String],
      default: 34,
    },
    // 水平滚动时的滚动速度，即每秒滚动多少rpx，这有利于控制文字无论多少时，都能有一个恒定的速度
    speed: {
      type: Number,
      default: 160,
    },
    // 水平滚动时，是否采用衔接形式滚动
    isCircular: {
      type: Boolean,
      default: true,
    },
    // 滚动方向，horizontal-水平滚动，vertical-垂直滚动
    mode: {
      type: String,
      default: "horizontal",
    },
    // 播放状态，play-播放，paused-暂停
    playState: {
      type: String,
      default: "play",
    },
    // 是否禁止用手滑动切换
    // 目前HX2.6.11，只支持App 2.5.5+、H5 2.5.5+、支付宝小程序、字节跳动小程序
    disableTouch: {
      type: Boolean,
      default: true,
    },
    // 通知的边距
    padding: {
      type: [Number, String],
      default: "18rpx 16rpx",
    },
  },
  computed: {
    // 计算字体颜色，如果没有自定义的，就用uview主题颜色
    computeColor() {
      if (this.color) return this.color;
      // 如果是无主题，就默认使用content-color
      else if (this.type == "none") return "#606266";
      else return this.type;
    },
    // 文字内容的样式
    textStyle() {
      let style = {};
      if (this.color) style.color = this.color;
      else if (this.type == "none") style.color = "#606266";
      style.fontSize = this.fontSize + "rpx";
      return style;
    },
    // 垂直或者水平滚动
    vertical() {
      if (this.mode == "horizontal") return false;
      else return true;
    },
    // 计算背景颜色
    computeBgColor() {
      if (this.bgColor) return this.bgColor;
      else if (this.type == "none") return "transparent";
    },
  },
  data() {
    return {
      // animation: false
    };
  },
  methods: {
    // 点击通告栏
    click(index) {
      this.$emit("click", index);
    },
    // 点击关闭按钮
    close() {
      this.$emit("close");
    },
    // 点击更多箭头按钮
    getMore() {
      this.$emit("getMore");
    },
    change(e) {
      let index = e.detail.current;
      if (index == this.list.length - 1) {
        this.$emit("end");
      }
    },
  },
};
</script>

<style lang="scss" scoped>
@import "../../libs/css/style.components.scss";

.u-notice-bar {
  width: 100%;
  @include vue-flex;
  align-items: center;
  justify-content: center;
  flex-wrap: nowrap;
  overflow: hidden;
}

.u-swiper {
  font-size: 26rpx;
  height: 32rpx;
  @include vue-flex;
  align-items: center;
  flex: 1;
  margin-left: 12rpx;
}

.u-swiper-item {
  @include vue-flex;
  align-items: center;
  overflow: hidden;
}

.u-news-item {
  overflow: hidden;
}

.u-right-icon {
  margin-left: 12rpx;
  /* #ifndef APP-NVUE */
  display: inline-flex;
  /* #endif */
  align-items: center;
}

.u-left-icon {
  /* #ifndef APP-NVUE */
  display: inline-flex;
  /* #endif */
  align-items: center;
  width: auto;
  height: 32rpx;
  padding: 0 8rpx;
  line-height: 32rpx;
  font-size: 22rpx;
  font-weight: bold;
  color: #ff7f00;
  border: 2rpx solid #ff7f00;
  border-radius: 6rpx;
  text-align: center;
}
</style>
